Hiragana! is a nice looking game that allows anyone to learn japanese hiragana with no effort, just by playing against someone or against the computer.
Each player selects a pair of cards. If those cards represents the same hiragana then the player marks one additional point and play again. Each time a card is reversed, a voice announces the hiragana.
Memorizable graphics and nice animations.
You will be surprised how fast and effortless you will have learnt hiragana.